1. High price: the price of the same displacement is 40% higher. The standard displacement 1.8 is about 0.5 million for ordinary cars and 2 1 10,000 for hybrid cars. The extra 60 thousand yuan is enough to burn oil for ten years at present. The oil price is low and the advantage is not obvious.
2. Maintenance difficulty: At present, the patented technology is still in the hands of several large foreign companies, and only big cities have maintenance conditions. Some accessories are unique to hybrid cars and cannot be used with ordinary cars, such as wheels.
3. Small space is very important: the extra battery and motor take up a lot of space and increase the weight. Long-distance running works with a gasoline engine, just like an ordinary car, but with an extra set of motors. Cities are mainly driven by electric motors, but they are equipped with one more gasoline engine than pure electric vehicles. These loads consume energy.
4. Operation disadvantages: it is necessary to take into account the battery power, otherwise it is difficult to start due to insufficient power; When parking, you should also pay attention to turning off the motor, but you can't turn it off with one button.
Characteristics of twin-engine cars
1. When the vehicle is started, the engine does not work, and the vehicle can be started sensitively and smoothly only by relying on the motor that can provide the maximum torque instantly.
2. When driving-use the motor and engine at the same time, always keep the output power and fuel economy in the best state. After the engine is started, according to the actual driving situation, two kinds of power, "directly driving the wheels" and "used for power generation", are automatically distributed. Toyota's hybrid dual-engine power system is not only used to drive the motor of the vehicle, but also loaded with the motor specially used for power generation.
Relying on this original technology, the power of the engine and the auxiliary power provided by the motor can be skillfully combined and used efficiently. At the same time, by accurately controlling the distribution of these two kinds of power, the best energy efficiency can be achieved. * According to the actual driving conditions, automatically control the engine speed.
3. Decelerating and braking under the tower-When stepping on the brake pedal, the motor can be converted into a generator, and the recovered energy can be stored in a high-voltage battery. When an ordinary car slows down, the mechanical motion energy of the car after braking friction will be converted into heat energy and dissipated into the atmosphere. Toyota's hybrid dual-engine power system can convert the mechanical motion energy of vehicles into electrical energy and reuse it.
4. When parking-when parking at a red light, the engine and motor will automatically stop running. In this way, gasoline will not be wasted because of idling, and there is no exhaust emission.